P
AGE
15
OF
25
17. Six Month Maintenance on the Venturi Driven Vacuum
Sampler.
Confirm that the chamber is clean.
_____
Confirm that the Venturi pump is clean, and there is no build-up of lime-scale or other
material inside the Venturi pump. Clean the Venturi pump with appropriate cleaning agent
if necessary.
_____
Confirm that the air supply for the valves and air supply for the purge is at the correct
pressure. See section 3 for details.
_____
Confirm that the water pressure and temperature for the purge is at the correct pressure.
See section 3 for details.
_____
Confirm that the chamber is filling correctly.
_____
Confirm that the chamber is purging correctly.
_____
Confirm that the membrane valves are not leaking.
_____
Confirm that the valve isolating the Sampler from the BioTector is not leaking.
_____
Confirm the Venturi is detecting sample correctly.
_____